 Five years later, he led a rebellion and overthrew Bunei, establishing his own father, Shishō, as King of Chūzan.Hashi effectively ruled from the behind the scenes, and led Chūzan's army against the neighboring kingdoms, conquering Hokuzan in 1419 and Nanzan in 1429.In the intervening years, he formally succeeded his father to the throne and received investiture and the dynastic family name "Shang" (尚, "Shō" in Japanese or Okinawan) from the Ming court.